code: def test_load_changed_command(dvc, stage_data, lock_data):
      dvcfile = load_file(dvc, PROJECT_FILE)
      stage = StageLoader.load_stage(dvcfile, "stage-1", stage_data)
      assert not stage.cmd_changed
      assert stage.cmd == "command"
  
      lock_data["cmd"] = "different-command"
      stage = StageLoader.load_stage(
          dvcfile, "stage-1", stage_data, lock_data
      )
      assert stage.cmd_changed
      assert stage.cmd == "command"
  
imports: import os
  from copy import deepcopy
  from itertools import chain
  import pytest
  from dvc.dvcfile import PROJECT_FILE, load_file
  from dvc.stage import PipelineStage, create_stage
  from dvc.stage.loader import StageLoader
  from dvc.stage.serialize import split_params_deps
  from dvc_data.hashfile.hash_info import HashInfo
label_desc: Use image node_id 17 for calling a global function with example usage: test_load_changed_command(dvc, stage_data, lock_data) without return types